I organized my tea by flavors - A, B, C, D, A, B, C, D, A, B... Am good for a long time. Lipton will last even longer.
Cat food organized the same way so they don’t get tired of the same ‘ol same ‘ol.
Tea bags can be stuffed into canning jars and put in a freezer, if you have one and have room.
They will keep a LONG time there.